EBK 3I-EBK: WELDING PRINCIPLES & APPLIC
8th Edition
ISBN: 9780176919764
Author: Jeffus
Publisher: VST
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Chapter 23, Problem 7R
What is kerf space?
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Part A
The man pulls on the rope with a force of F = 30 N as shown in (Figure 1).
Figure
1.5 m
3 m.
4m
10.5 m
1 of 1
Determine the position vector from O to A.
Express the x, y, and z components of the position vector in meters to three significant figures separated by commas.
ΜΕ ΑΣΦ
vec
(TOA). (TOA)y. (TOA)==
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Part B
m
Determine the position vector from O to B.
Express the x, y, and z components of the position vector in meters to three significant figures separated by commas.
ΜΕ ΑΣΦ
↓↑ vec
(TOB)x, (TOB)y, (TOB) =
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Request Answer
Part C Complete previous part(s)
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m
4
Part A
The tool is used to shut off gas valves that are difficult to access (Figure 1).
Figure
0.25 m
30
0,4 m
<
1 of 1
If the force F= {-60i+40j+15k} N is applied to the handle, determine the component of the moment created about the z axis of the valve.
Express your answer with the appropriate units.
Mz
=
Value
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3. A steam power plant has an average monthly net power delivery of 740 MW over the course of
a year. This power delivery is accomplished by burning coal in the boiler. The coal has a heating
value of 9150 Btu/lbm. The cost of the coal is $14.20/ton. The overall thermal efficiency of the
plant is,
nth
Wnet
Qboiler
0.26 = 26%
Determine the annual cost of the coal required to deliver the given average monthly power.
Chapter 23 Solutions
EBK 3I-EBK: WELDING PRINCIPLES & APPLIC
Ch. 23 - List precautions you must take when welding around...Ch. 23 - What is a cost advantage of using preformed parts...Ch. 23 - Why is a prototype custom fabricated before...Ch. 23 - Prob. 4RCh. 23 - How can circles, arcs, and curves be laid out?Ch. 23 - Which cutting process does not produce a kerf...Ch. 23 - What is kerf space?Ch. 23 - Which of the cutting processes can leave the...Ch. 23 - What are two common ways to provide for the kerf...Ch. 23 - Prob. 10R
Ch. 23 - What is the difference between plate and sheet...Ch. 23 - What is a part's tolerance?Ch. 23 - What can you do to make parts fit without having...Ch. 23 - Why should you avoid recutting or grinding parts...Ch. 23 - What problem can result if the root opening of a...Ch. 23 - What is the benefit of identifying a single part...Ch. 23 - List three types of clamps used to temporarily...Ch. 23 - What makes some C clamps better for welding than...Ch. 23 - What is a simple way of correcting slight...Ch. 23 - What precautions should be taken if a hammer is...Ch. 23 - What is the purpose of tack welds?Ch. 23 - How many tack welds should be used on thin metal...Ch. 23 - Does it matter if one of the tack welds breaks...Ch. 23 - Why is it important not to strike the arc outside...Ch. 23 - What can happen if a grinding stone with a...
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